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Youtube Video ID Regex & PHP Function

/ Published in: PHP
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I\'ve added an additional case to handle videos linked from a user\'s channel.

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  1. /**
  2.  * Creates a YouTube thumbnail URL from a YouTube video URL
  3.  */
  4. function youtube_video_thumbnail($url,$index=0){
  5.     if(preg_match('/^[^v]+v.(.{11}).*/',$url,$matches)){
  6.         return 'http://img.youtube.com/vi/'.$matches[1].'/'.$index.'.jpg';
  7.     }elseif(preg_match('/youtube.com\/user\/(.*)\/(.*)$/',$url,$matches)){
  8.         return 'http://img.youtube.com/vi/'.$matches[2].'/'.$index.'.jpg';
  9.     }else{
  10.         return false;
  11.     }
  12. }

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